Give two parametric representations for the equation of the parabola.y = x2 + 4x + 12
A. x = t, y = t2 + 4t + 12 for t in (-?, ?); x = t + 2, y = t2 + 8 for t in (-?, ?)
B. x = t, y = t2 - 4t - 12 for t in (-?, ?); x = t + 2, y = t2 + 8 for t in (-?, ?)
C. x = t, y = t2 + 4t + 12 for t in (-?, ?); x = t - 2, y = t2 + 8 for t in (-?, ?)
D. x = t, y = t2 + 4t + 12 for t in (-?, ?); x = t - 2, y = t2 - 8 for t in (-?, ?)
Answer: A
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